wood firing tiles

I made a set of simple tiles using only self-made sprial wire cutter and Jalan Bahar local white clay last year and fired them in the electric kiln. I brushed iron oxide and blue slip into the grooves to give it some colours. I did not quite like the end result as they were less intense and the colours were dull. Out of these four tiles, two are re-fired in the wood kiln and two are fired once in the electric kiln. The shrinkage is quite visible too. Can you spot the difference?

The colours of these tiles are now very rich and intense from the ash and salt glaze produced by the wood firing. Only wood firing will yield such unpredictable result.

A close up of one of the tiles shows the variations in textures and colours from a tiny area.